action potential


Also found in: Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to action potential: membrane potential, Cardiac action potential

action potential

n.
A momentary change in electrical potential on the surface of a cell, especially of a nerve or muscle cell, that occurs when it is stimulated, resulting in the transmission of an electrical impulse.

action potential

n
(Physiology) a localized change in electrical potential, from about –70 mV to +30 mV and back again, that occurs across a nerve fibre during transmission of a nerve impulse

ac′tion poten`tial


n.
the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated, serving to transmit nerve signals. Compare nerve impulse.

action potential

- A brief electrical signal transmitted along a nerve or muscle fiber following stimulation.
See also related terms for nerve.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.action potential - the local voltage change across the cell wall as a nerve impulse is transmittedaction potential - the local voltage change across the cell wall as a nerve impulse is transmitted
nerve impulse, nervous impulse, neural impulse, impulse - the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
References in periodicals archive ?
Following the ideas of evolution equations (see for example [15,16], it is possible to derive also an evolution equation for the action potential [36]:
Our data corroborate the literature about antinociceptive activity (20) since local anesthesia could be considered a mechanism to interrupt pain through the blockade of action potential (12).
Subtype-specific promoter-driven action potential imaging for precise disease modelling and drug testing in hiPSC-derived cardiomyocytes," European Heart Journal, 2016; ehw189 DOI: 10.
The action potential diffuses through the membrane by T tubules Ca 2+ channels and activates the RE.
Jitter measurement with a CNE have risks, such as the triggering and/or jittering potentials being compound signals due to summation, and showing extra phases rather than a clear single-fiber action potential (18).
The model of Hodgkin-Huxley contains four nonlinear ordinary differential equations that describe the generation and propagation of action potentials.
2 A to E: The effect of hyperkalemia on action potential curve: atrial (A) and ventricular (V).
8%) (prolonged sensory response latency, slower sensory conduction velocity, non-obtained sensory nerve action potential, etc.
This is the basis of an action potential in excitable cells such as neurons.
It appears that ruminal acidosis accelerated pacemaker activity in the heart, thus increasing heart rate, but had no significant effect on the time course of the spread of the action potential through the ventricles.
Results: R(+)-puIegone delayed action potential repolarization (APR) in a concentration-dependent manner ([EC.

Full browser ?